Which shape has parallel sides

The trapezoid has one pair of parallel sides. The parallelogram, the rectangle, and square all have two pairs of parallel sides.

The trapezoid has one pair of parallel sides. The parallelogram, rectangle, and square all have two pairs of parallel sides. Other less common shapes with parallel sides include any of the '-gons' with an even number of sides, such as a hexagon, octagon, decagon, etc.